Combined coal and gas water-heater.



" H. A. BECKER @L A. n. DUKELOW.

COMBINED COAL AND GAS WATER HEATER.

APPLICATION FILED NDV. I0. 1916.44

Patatedl Den.. 4, 1917 3 SHEETS-SHEET I 'RQ A. BECKER R-A. n. RUREERW. coMBlREo coAE ARRQGRS WATER REA'TER. i v

APP'ElcATloR FILED Nov. 1o;1s1s.` Patented DR@ 4,1937;

fWEmgR/Ma/@Zm HUGO A. BECKER .AND- ALFRED ID. DUKELOVV, OF ROCHESTER, NEW "llLl, SSGNORS TO SLL STVE "WORKS, E ROCHESTER, NEWDYORK, CORPORATUJEI' OF NEW? Y'tl.

CMBENEB COAL AND GAS VJATER-HEATER.

aaiaaea Application filed November il), 1911.6.

To all w/Lom t may concern.'

Be it known that we, HUGO A. BECKER and ALFRED l). DUKELOW, both of Rochester, in the county of Monroe and State of New York, have invented certain 'new and useful improvements in Combined Coal and Gas l/Vater-Heaters; and we do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference characters marked thereon.

Our invention has for its purpose to provide a water heating appliance in conjunction with a coal store, with provision that permits it to be utilized also with gas heating means so that the water may be heated from gas or coal selectively, thus making it possible to quickly obtain a supply ot heated water when the coal side oi' the stove is not in operation. il more particular object of the improvement is to alloi'd a structure of the general type above mentioned with the pars so constructed as to obtain Lfgreat elliciency :trom/the gz s heater, by causing a relatively small amount of water lo travel over a maximum extent oi heated surface, thug reducing to a minimuln the time required `for bringing the water up to the normally desired temperature. A 'further object ol. the invention consists in providing a fairly .simple and economical manul'acturingr and assembling structure, also to permit ol? n'ialiingY repairs with a fair degree of case. and so placing' the device on` an ordinarily coininercial basis. To 'these and other ende` the invention consists in. certain inunovenients and combinations ot parte all as will be herein'ailfti-nI more fully described, the novel features being' pointed out in the claims at the end of the specification.

fin the drawings:

ll`igfure l. is a View in :side elevation et a coal stove equipped with the invention;

Fig. Q'is a sectional view on the line WW2 oif Fig. Il;

liigg'. 3 is sectional View on the line StL-3 of Fig. Q, and

Fig. if a plan View oi. the burner employed in the heated chamber.

l Similar reference eluiracters throughout the several views indicate the same parts.

rlhe invention consists generally in providing a water compartment which. is gretepcci'lcation of Letters Tiatent.

in, L To -r aten ted wee. la alllilra Serial No. ll.

erably similar to the usual water back or Water front, and arranging it so as to consti-- tute one side oli the lire-boa et a coal Stove. Adjacent to the outer surface of the water compartment is a gas heated chamber that is separated from the lire-box by the water compartment referred to? and arranged in the gas heated chamber .is a series of vertically extending water conducting coils that communicate with the upper and lower portions of the water compartment and Aare heated by suitable gas burning means. rlhe water conducting coile are connected in multiple with the water compartment so that when the gas chamber is iu operation7 the Volume of Water is di vided up into a lnumber oli relatively small sftreai'nsithat are independently heated as itpassea simultaneousl y through `the dil'lierent coils, and these arranged and heated in such a way as 1o insure a quichV heating operation from the i water traveling over a maximum heated surface. l

lin the embodiment lillustrated and described .in the present appl icatiouj l designates the tire-box et a coal stove, haring grate. sections; 2 and lire-brick walls 3 at the lirontbaclt and alont,r one side. lThe opposite side of the lire-boi; is Vliornied by a hollow 'water comparl'n'ient, the inner Wall of' which is designated by l and the outer wall. rl-he water ceniiriartment is connected with the wat -z' supply or boiler through the inlet and outlet opeuiug's' and .7. respectively, connecting with inlet and outlet pipes 8 and 9 respectively. l0 designates a horizontal web or partition extending` from one end of 'the vater compartment to the other, :rating it into upper and lower portions embers llV and l2, and it. further prof id at its 'l'orward end with an opening 13 jjierinittingcy cireulatimi oli' the water from the lower portion Iii to the upper portion lll when heated by coal from the tire-boa: i.

For the purpose ot heal-,ing` water when the .tire-box l is not in useIn we employ a gas heated chamber il adjacent te the outer Vall of the water compartment and framed by suitable Side and bottom Walla and lo respectively7 while lli des'knates a door that is hinged to tl side et the gas heated chamber to pei-nut ready access thereto rranged within the gras heated chal'nber are water conducting coils le, each oi which is Mill i the means that will now The preferred form of burner is 1llus` end of the coil.

comparatively wide, or of large diameter, as compared with its length, for a purpose that will appear more clearly presently. A series of these coils is used, the ends of each coil 5 being connected with the upper and lower chambers respectively of the water compartmentas shown in Fig. 2 clearly, where 19 designates the upper end of a coil that is connected with the upper chamber l1, and

10 20 designates the lower end connected with the lower chamber 12. In the operation of the gas heated chamber, the water circulates simultaneously through the several coils 18 from the bottom upwardly, being heated by be described.

that insures heating every portion of the coil. This heating effect is due to the circular like arrangement of thel burner, substantially coextensive with the end of the coil, and also -to vthe fact that the coil is'of S0 comparatively short length, so as to main-- tain as far as possible an even degree of heat throughout the length of the coil as the heat `of the fiame carries toward the top of the. coil. Thisv even distribution of heat, and

directing it around the entire diameter of the coil, causes the water to be subjected in relatively small streams to heated surfaces of maximum extent in a given time, andreduces to a very large degree the time re- '40 quired for heating a givenamount of Water.

W hen a coal stove is in operation, the matter of heating water is not a great problem "because a certain supply of hot water is always available, but when the coal stove'is e5 not'in use or when it is desirable to supplemenltiitlp heat from the coal, and a supply of hot-water is'wanted, it is very essential that it be obtained inthe quickest possible time. lith the present apparatus, this can E10 be accomplished in a few minutes, as compared with other types of heaters that reyquire anywhere vfrom ten to thirty minutes to obtain a normal supply of hot water.

In order to assistin thewater heating op- 5a eration, when the gas chamber is in use, we

also employ a burner 22 extending` lengthwise of the gas heater chamber and preferably forming, in part, continuations of the circular burner sections 2l. rThe. burner 22 il@ is provided with a seties of fue] openings 23 which are inclined slightly toward the water Compartment in order to direct the llame toward the water coils 18, and also toward the lower part or chamber 12 of the water B compartment. This results in heating the chamber and communicating water conducting coils quickly, and also heating the outer wall of the water compartment, which assists in bringing the tempera ture of the water up to the desired point in a minimum space ot' time. It will be observed that access can be readily had to the gas heated compartment, and to the coils 1S independently of each other, so that any one of thecoils may be removed and replaced if necessary. lnasmueh as the coils are se cured only at their opposite ends, free expansion and contraction is permitted without loosening the joints where connection is made with the water compartment, and these are advantages which contribute toward making the device. not oul)v cllicicnt, but practicable and commercial.

The water compartment. while herein shown and described as similar to a water frontI or water back, need not necessarily bc of this particular form, but may be olt an)- character suitable for conducting the water from the inlet to the outlet pipes leading:r to the boiler, and forming in part or entirely one side of the lire-box, so that the water compartment is subjected on one side to heat from the fuel. in the. lire-box, and on the other side to heat from the gas heated chamber. It will be undcrsl'ooi'l, of course,

that when we refer to the gas heated chamber throughout the specilu ition and claims of this application, we intend to include any other iuid or liquid fuel, as distinguished from wood, coal, or coke.

le claim as our invention:

l. In a combined coal and gas water heater, the con'ibination with a water compartment forming one. wall of ai lire-box, of a gas heated chamber located adjacent to the lire-box, a series of water conducting coils arranged vertically in the gas heated at their ends with upper and lower portions of theI water con'ipartment, and gas heating means located beneath the coils.

2. In a combined coal and gas water heater, the combination with a water compartment forming one wall of a tire-box, of a gas heated chamber located adjacent to the fire-box, a series of water conducting),` coils arranged vertically in thev gas heated chan'iber and communicating at their ends with tippe' and lower portions of the water compartment, and ay gas burner arranged beneath cach coil and. conformingV substantially to the. end thereof whereby to expose the BCH! C@ Wirth uppei and 10mm pw the wm' Qompzu'tment, :md y; l www5 located bencmlih the ms 

